Trend analysis as in Table 1 shows that both sulphate and nitrate are increasing in R1 and R2, while only sulphate shows an increasing trend in R4.
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A nature-based solution to a landfill-leachate contamination of a confined aquifer.
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The sentences
While there was lack of a clear trend in moving from the proximal through intermediate to the distal well, the maximum measured concentrations of chromium and copper were recorded from the distal well.